Window pulley



March 15, 1932. R E HAMlLTQN 1,849,487

WINDOW PULLEY Filed July 25. 1930 JNVENTOR,

7 03/ Z%/771Zi021.

A TTORNEYS.

g I STATES Patented Mar. 15,1932

. aoYnnAmLroN, or 'xANsAs crrY, KANSAS, ASSIGNOR rorocx Jomrwmnow coir- Y PANY, or. K NSAS cI'rY, mssoum, A coaronA'rro v'or nnnA'wAnn,

ru LEY Application filed July 25,

This invention relates to window pulleys and has for its primary object the provision of an especially constructed housing for sup? porting the wheel of the pulley, which housing is formed to present a plurality offeet, all of which are struck from the sides of the'metal housing in such a manner as to provide a three-point support which allows-the structure to be used as an' overhead Jpulley in the manufacture and installation of vertically slidable window frames.

One of the salient features of the invention is to provide an overhead window pulley which has a housing provided with a plurality of supporting feet, one of which is long enough to receive a fastening means at a point sufliciently removed from-the housing to permit the use of power driven tools for placing such fastening means;

. A'yet further object 'of the instant invention is the provisionof a novelly and cheaply constructed housing for window pulleys, one side of which has struck therefrom a pair of. supporting feet; the other side having a single foot projecting therefrom {all of said feet being disposed in the same plane and spaced inwardly from'on'e edgeof the housing.

An even further object of this invention is the contemplation of a window pulley housing which has a supporting foot projecting laterally from one side thereof in a plane spaced inwardly from one edge of the housing, said foot being of a projected length substantially greater than the distance it is spaced inwardly from the aforementioned e ge.

It is well known in this art that pulley housings, when made in the ordinary manner create an unusual amount of waste material which adds to the manufacturing cost and will ultimately in competition lead to the abandonment of said forms of pulley housings which have created a manufacturing cost greater than the selling price will sup ort. It is therefore one of the prime objects this invention to provide a pulley housing which may be made up in a new and novel manner from stock of uniform width and without creating an appreciable amount of waste. The preferred form of the pulley shown-in 1930. Serial No; 470.682.

theaccompa'nying drawings embodies the invention. Figure 1 is a side elevation of a, window pulley made in accordance with the invention; I I. 1 F ig.'2 is a similar view of the oppositeside thereof." a 1 a I Fig. 3is a top plan view of the pulley. 'FigA'isanedgeview of the same. Fig. 5 is' a vertical central section through the: pulley taken. alongline. V-V of Fig; 1,

, Fig.6 is a diagrammatic view showing the blank from which the pulley is being formed. .Vith specific referencetothe parts of the window pulley illustrated in the accompanying drawings; wherein like reference characters refer to similar parts. throughout the several views, the numeral 8 idesignates a'wheel of ordinary construction over which may'pass the window cord not here shown when the pulley is-in the operative position: i

This wheel 8 is supported within ahousing 10,by a shouldered pintle12 which serves both as a means for securing :the housing together as well vas a. supportwfor rotatably mounting the wheel 8.. Housing 10 for wheel 8is preferably formed of two parts, side 14 and a side 16. Each side mayihave a boss 18 pressed outwardly about the pintle 12 to lend rigidity anddome shaped top and side edges are closed along the seam 20 which may be fused 'by spot welding asat22 tomore secure 1y holdtog'etherthe sides-14 and: 16. The lower edge of housing l0'is open for the passage'of the window cords and .in constructing an overhead pulley: this lower open'edge projects into a slot or similar opening formed in the head plate 26 of the 5 ordinary window frame. f a I 3 .IbiSdSlI'ftblBtO support housing-10 and fasten it in place as" illustrated in Fig. 4 andin the manufacture of such structures. itYis desirable touse E screw setting machines: to drivethe' screws :which hold thezwindo'w pulley in place; To fulfill thisrequirement, yet to manufacture a pulley housing without ad ditional expense by wasting material, a novel methodof formingthe housing has been conceived which consists in first striking out blank 28 such as shown in Fig. 6 from which is made the two sides 14 and 16 of housing 10, topresent a foot long enough to receive the fastening means. Foot 30 is struck from the blank to take material from both sides and at a predetermined point in the manufacture of the housing the twosides 14 and 16 are cut apart along line 32 which leaves foot 30 ready to bebent to a position as shown in Figs. 3 to5 inclusive where it lies in a plane spaced inwardlyfrom the openedge-of hous-- 111g 10. In this manner foot 30 has a projected length I wardly rom the opposite edge of housing 10. Naturally the. notch 34 from which part of the material for foot 30 was taken remains in side l4but does'not weaken the housing. in any manner. whatsoever- The angled. sides 36 of foot 230 permits leaving sufficient stock in side. 14 to form the pairof feet 38 from side 14 as shown in Fig. 2. These feet38lie in the same plane as foot 30 and allv of'the feet are preferably strengthenedv against distortion along the linerof bend by the embossed ribs 40 which maybe pressed intothe material during the manufacture. As shown, each of the feet 38. may have an angled side 42 which allows for the economies in manufacture as hereinbefore set down. The notch 34. extendsinwardly toa point on the plane extending between the lower sides of feet 38 which insures a complete closing when the window pulley is in place. After the lower portion of the housing'lO has been positioned in'opening24 a screw or similiar fastening means 44 may be driven through hole 46'; to secure the device in place. 1

Thusit is seen thatzan: extremely eflicient and cheaply constructed window pulley housinglmay be formedwhen practicingthi's invention. and while the specific design is-highly important, it is desired to be limited in practicing this invention: only by the scope of the appended claims. WVhat is claimed secured by Letters Patent is: 1. A window pulley comprising a wheel, a housingv for the wheel and a plurality of supporting feet formed from the sides of the housing'and disposed perpendicularl thereto, one of the sidesh-aving a pair 0 spaced apart feet, the other side having'a single foot of greater projected length than either of said feet of the pair and a hole formed through said single foot all of said feet being in a common plane parallel with the axis of said wheel. I

2. A window pulley comprising a wheel, a housing forthe wheel, apair of supporting feet formed from one side of the housing, a single foot of relatively greater length formed from the other side of'the housing and a hole formed through said longer foot adjacent the outer edge thereof and a diagoreater than thedistance it lies i-n-;

as new'and desired to be nal rib formed in said housing to extend from the edge of said feet to its adjacent side wall. 7

3. A window pulley comprising a wheel,

a housing for the wheel, a pair of spaced apart supporting feet formed from one sideof the housing, a single foot of relatively greater length and width'formed' from the other side of the housing, said feet all being disposed in a plane spaced inwardly. from one edge of'said housing, the projected length of said single foot being" substantially greater than the distance from its point of juncture formed from. the other side of the housing,

a notch. formed in. said side extending from the foot to the edge thereof, said foot having a projectedlength substantially equal to the combined depth of both. of said notches.

54A window pulley comprising a wheel, a housing for the wheel, a pair of spaced apart supporting feet formed from one side of the housing, a single foot of relatively greater length and width formed from the other side of the housing and a hole'formed through said foot adj acent the projected edge thereof, the extended. plane of each side of the single foot intersecting one of the pair of feet respectively whereby to'a'lford a three point support for said housing, all of said feet being disposed in a plane atright angles to the plane of the wheel and spaced inward 1y from one edge of the housing- In testimony whereof I hereunto afliX my signature.

nor E. HAMILTON. 

